A Hatfield-based charity has campaigned to change the Galleria's toilet signs as part of Purple Tuesday.

Crohn’s & Colitis UK, which is headquartered in Hatfield just opposite the Galleria, battles against Inflammatory Bowel Disease (IBD).

On Tuesday November 13, as part of the Galleria’s disability awareness-boosting effort, the charity changed the toilet signage to be more inclusive of invisible disabilities such as IBD.

Inflammatory Bowel Disease, which usually affects people in the form of Crohn’s Disease or Ulcerative Colitis, includes complications with the lower abdomen, and can lower energy levels, along with many other symptoms.

But the disability is not always obvious to onlookers.

The sign that the charity would like all public toilets to adopt. Picture: Crohn's & Colitis UK

A survey conducted by the charity found that 49 per cent of people with IBD had been challenged by strangers for using the disabled toilet.

“It can be a real problem for people,” said a charity spokesperson.

The new toilet signs show the usual symbol for a wheelchair user, as well as the male and female symbols seen on toilet signs for abled-bodied users.

They are accompanied by the message “not every disability is visible”.